Clareatha is a unique and distinctive given name of American origin, derived from Irish Gaelic elements 'Clar' meaning 'clear', 'bright', or 'famous', and 'áthair' meaning 'father'. It is a variant spelling of Claretha, which itself is an adaptation of the Irish name Cläreadha. The name gained popularity in the United States during the mid-20th century but has since become less common. Those named Clareatha are often referred to by their full name or shortened versions like Clare or Clara for familiarity.
"Clareatha was quite popular in 1935 with 5 newborns sharing the name. There was another peak in popularity a decade later in 1949, with another 5 babies named Clareatha."